Set html to webview android

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Working with the WebView

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If you want to deliver a web application (or just a web page) as a part of a client application, you can do it using WebView. The WebView class is an extension of Android’s View class that allows you to display web pages as a part of your activity layout. Since Android 4.4, it is based on the Chrome on Android v33.0.0 according to this reference.

This document shows you how to get started with WebView and how to do some additional things, such as handle page navigation and bind JavaScript from your web page to client-side code in your Android application. See the official WebView docs for a more detailed look.

An alternative for using WebViews is Chrome Custom Tabs, which provides more flexibility in terms of customizing the toolbar, adding animations, or warming up the browser ahead of time. Chrome Custom Tabs only works if Chrome on Android is installed on the browser. For more information, see this guide.

To get Internet access, request the INTERNET permission in your manifest file. For example:

manifest . > uses-permission android:name="android.permission.INTERNET" /> . manifest>

To add a WebView to your Application, simply include the element in your activity layout:

xml version="1.0" encoding="utf-8"?> WebView xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/webview" android:layout_width="match_parent" android:layout_height="match_parent" />

First, we need to configure the WebView to behave with reasonable defaults using WebSettings and creating a WebViewClient:

public class MainActivity extends Activity < private WebView myWebView; @Override protected void onCreate(Bundle savedInstanceState) < super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myWebView = (WebView) findViewById(R.id.webview); // Configure related browser settings myWebView.getSettings().setLoadsImagesAutomatically(true); myWebView.getSettings().setJavaScriptEnabled(true); myWebView.setScrollBarStyle(View.SCROLLBARS_INSIDE_OVERLAY); // Configure the client to use when opening URLs myWebView.setWebViewClient(new WebViewClient()); // Load the initial URL myWebView.loadUrl("https://www.example.com"); > >

class MainActivity : Activity() < private lateinit var myWebView: WebView override fun onCreate(savedInstanceState: Bundle?) < super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val myWebView = findViewByIdView>(R.id.webview) as WebView myWebView.apply < // Configure related browser settings this.settings.loadsImagesAutomatically = true this.settings.javaScriptEnabled = true myWebView.scrollBarStyle = View.SCROLLBARS_INSIDE_OVERLAY // Configure the client to use when opening URLs myWebView.webViewClient = WebViewClient() // Load the initial URL myWebView.loadUrl("https://www.example.com") > > >

You can attach javascript functions and use them within the mobile webpages as described here in the official docs.

Handling responsive layouts

By default, the WebView does not account for the default scale size if HTML pages include viewport metadata. If you wish to enable the page to load with responsive layouts, you need to set it explicitly:

// Enable responsive layout myWebView.getSettings().setUseWideViewPort(true); // Zoom out if the content width is greater than the width of the viewport myWebView.getSettings().setLoadWithOverviewMode(true);

// Enable responsive layout myWebView.getSettings().setUseWideViewPort(true) // Zoom out if the content width is greater than the width of the viewport myWebView.getSettings().setLoadWithOverviewMode(true)

You can also enable the ability to zoom-in controls on the page:

myWebView.getSettings().setSupportZoom(true); myWebView.getSettings().setBuiltInZoomControls(true); // allow pinch to zooom myWebView.getSettings().setDisplayZoomControls(false); // disable the default zoom controls on the page

myWebView.getSettings().setSupportZoom(true) myWebView.getSettings().setBuiltInZoomControls(true) // allow pinch to zooom myWebView.getSettings().setDisplayZoomControls(false) // disable the default zoom controls on the page

In case you want to store a copy of a webpage locally to be loaded into a WebView , you can put it in the android assets folder. If you do not find one under your main/ directory, then you can create one. Place the html, css, js, etc in this folder.

For example, say I wanted to load a page entitled index.html . I would create my file under /app/src/main/assets/index.html

then, in your activity or fragment you can use the code

public class MainActivity extends Activity < private WebView myWebView; @Override protected void onCreate(Bundle savedInstanceState) < super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myWebView = (WebView) findViewById(R.id.webview); myWebView.getSettings().setJavaScriptEnabled(true); myWebView.setWebViewClient(new WebViewClient()); String path = Uri.parse("file:///android_asset/index.html").toString(); myWebView.loadUrl(path); > >

class MainActivity : Activity() < private lateinit var myWebView: WebView override fun onCreate(savedInstanceState: Bundle?) < super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val myWebView = findViewByIdView>(R.id.webview) as WebView myWebView.apply < // Configure related browser settings this.settings.loadsImagesAutomatically = true this.settings.javaScriptEnabled = true myWebView.scrollBarStyle = View.SCROLLBARS_INSIDE_OVERLAY // Configure the client to use when opening URLs myWebView.webViewClient = WebViewClient() // Load the initial URL myWebView.loadUrl("https://www.example.com") val path: String = Uri.parse("file:///android_asset/index.html").toString() myWebView.loadUrl(path) > > >

Displaying a ProgressDialog in a WebView

Create your ProgressDialog in the setWebViewClient method

You can dismiss the dialog in onPageFinished method or in onPageCommitVisible . Setting dismis in the latter is convenient since your user won’t have to wait for the whole page to load to proceed.

webView.setWebViewClient(new WebViewClient() < ProgressDialog progressDialog = new ProgressDialog(Context); @Override public void onPageStarted(WebView view, String url, Bitmap favicon) < super.onPageStarted(view, url, favicon); progressDialog.setTitle("Loading. "); progressDialog.setMessage("Please wait. "); progressDialog.setCancelable(false); progressDialog.show(); > @Override public void onPageCommitVisible(WebView view, String url) < super.onPageCommitVisible(view, url); if (progressDialog != null)< progressDialog.dismiss(); > > >);

webView.setWebViewClient(object : WebViewClient() < val progressDialog: ProgressDialog? = ProgressDialog(Context) override fun onPageStarted( view: WebView, url: String, favicon: Bitmap ) < super.onPageStarted(view, url, favicon) progressDialog.setTitle("Loading. ") progressDialog.setMessage("Please wait. ") progressDialog.setCancelable(false) progressDialog.show() > override fun onPageCommitVisible( view: WebView, url: String ) < super.onPageCommitVisible(view, url) if (progressDialog != null) < progressDialog.dismiss() >> >)

Sharing cookies between WebViews and networking clients

WebViews currently use their own cookie manager, which means that any network requests you make outside of these web views are usually stored separately. This can cause problems when trying to retain the same cookies (i.e. for authentication or cross-site script forgery (CSRF) headers). The simplest approach as proposed in this Stack Overflow article is to implement a cookie handler that forwards all requests to the WebView cookie store. See this gist for an example.

Created by CodePath with much help from the community. Contributed content licensed under cc-wiki with attribution required. You are free to remix and reuse, as long as you attribute and use a similar license.

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How to Load HTML Data/String on Android WebView Application

Android WebView is a View that allows you to display website, static HTML data, and your custom web page. Using WebView you can able to convert your web page into android application. Here I describe how to load HTML Data on android WebView.

Creating Android Project

Let’s start by creating a new android project to Load HTML Data on Android WebView with following information:

Adding a WebView in Your Layout File

Modify Your Java File

To load HTML data in your android WebView just call loadData(), here is final code of MainActivity.java file.

«

This is a HTML Heading in Android WebView.

\n» +
«

This is a HTML paragraph in android WebView.

\n» +
«

Following is HTML Table in WebView

\n» +

That’s it, now run your Load HTML Data on Android WebView application, your app is look like below screenshot.

Simple Android WebView Example and Tutorial

Implementing Navigation Back Feature to Android WebView Application

Download complete Load HTML Data/String on Android WebView Application example project source code from GitHub.

Application Screenshot:

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